Toxicological Indices of Wistar Rats Fed Formulated Chaw of Telfairia occidentalis Planted on Crude Oil Contaminated and Remediated Soil

Reginald C Ohiri (), Eugene N Onyeike () and Augustine A Uwakwe ()

Agriculture and Food Sciences Research, 2021, vol. 8, issue 2, 36-43

Abstract: Toxicological indices of wistar rats fed formulated chaw of Telfairia occidentalis planted on crude oil contaminated and bioremediated soil was studied. Farmland, measuring 18 m2 was divided into three lots of 4 m2 and 2 m space was allowed between each lot (A, B and C). Two lots were polluted, subjected to 16 weeks of bioremediation and viable seeds of T. occidentalis were planted and grown for 28 days. The harvested vegetable leaves were analyzed. Leaves from natural attenuated soil showed high concentration of both aliphatic and polycyclic aromatic hydrocarbons with values of 9.34+0.03 mg/kg and 9.18+0.05 mg/kg for C36 and Fluoranthene respectively, while the bioaugmented soil had Lead as the highest heavy metal with a value of 0.10+0.02 g/100g. Four groups, of 9 rats each (totalling 36 rats) of adult males and females, wealing males and females were subsequently sub-grouped into 3 and allowed to acclimatize for a period of 1 week. These animals were fed formulated rat chaw of 50% dry weight of T. occidentalis, from the three lots (control, bioaugmented and natural attenuated soil) for a period of 28 days. Assay of animals’ toxicological index showed elevated concentrations of alkaline phosphatase, alanine and aspartate aminotransferases, urea and creatinine in their sera. A slight increase in serum amylase activity was recorded, while concentrations of their haemoglobin and Packed Cell Volume (PCV) reduced. The obtained results from these biomarkers were confirmed by the histopathological sections of the animal organs.

Keywords: Accumulation; Biotransformation; Crude oil; Excretion; Ingestion; Tocixity. (search for similar items in EconPapers)
Date: 2021
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